微观结构
极限抗拉强度
体积分数
材料科学
复合材料
延展性(地球科学)
体积热力学
热力学
蠕动
物理
作者
Lujun Huang,Geng Li,Bo Wang,Linzhi Wu
出处
期刊:Materials in engineering
[Elsevier]
日期:2013-03-01
卷期号:45: 532-538
被引量:88
标识
DOI:10.1016/j.matdes.2012.09.043
摘要
In order to better understand the relationship of structure–mechanical properties of TiBw/Ti6Al4V (TiBw/Ti64) composites with a network microstructure and deduce the upper limit of TiBw volume fraction, the effects of volume fraction on the microstructure and tensile properties were further investigated. The equation calculating the optimal and maximum volume fractions of reinforcement for the composites with a network microstructure was deduced. For the present system, the optimal and maximum volume fractions were verified to be 5.1 vol.% and 10.2 vol.%, respectively, by calculation, microstructure observation, tensile properties. When the volume fraction was equal and lower than 5.1 vol.%, the coarse TiBw formed, or else, the fine TiBw, the cluster TiBw and the block TiBw, even unhealed pores formed. The tensile strength of TiBw/Ti64 composites increases and then hastily decreases, while the ductility keeps on decreasing with increasing volume fractions of TiBw reinforcement.
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